Cryptology ePrint Archive: Report 2003/072

Proxy Blind Signature Scheme

Amit K Awasthi and Sunder Lal

Abstract: Blind signature is the concept to ensure anonymity of e-coins. Untracebility and unlinkability are two main properties of real coins, which require mimicking electronically. Whenever a user is
permitted to spend an e-coin, he is in need to fulfill above requirements of blind signature. This paper proposes a proxy blind signature scheme with which a proxy is able to make proxy blind
signature which verifier is able to verify in a way similar to proxy signature schemes.